Natural porous agar materials from macroalgae

被引:30
作者
Francavilla, Matteo [1 ,2 ]
Pineda, Antonio [2 ]
Lin, Carol S. K. [2 ,3 ]
Franchi, Massimo [1 ]
Trotta, Pasquale [1 ]
Romero, Antonio A. [2 ]
Luque, Rafael [2 ]
机构
[1] Natl Res Council CNR, Inst Marine Sci, I-71010 Lesina, Italy
[2] Univ Cordoba, Dept Quim Organ, E-14104 Cordoba, Spain
[3] City Univ Hong Kong, Sch Energy & Environm, Kowloon, Hong Kong, Peoples R China
关键词
Gracilaria; Microwave extraction; Porous materials; MICROWAVE-ASSISTED EXTRACTION; SEAWEED; SPECTROSCOPY; RHODOPHYTA; GALACTANS;
D O I
10.1016/j.carbpol.2012.11.005
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
Porous agar materials have been prepared from marine macroalgae species using a simple microwave-assisted extraction/drying methodology, providing a new family of polysaccharide derived porous solids. The microwave-assisted extraction allows a more efficient and less time-consuming extraction of the polysaccharide compared to conventional extraction protocols based on conventional heating. DRIFT and C-13 NMR results indicated that the internal agar structure (based on D-galactose and 3,6-anhydro-L-galactose linked units) was preserved after the extraction methodology, which opens a wide range of future possibilities and applications for this new family of porous polysaccharides. The extracted agar materials, which have already applications per se due to their high purities, could be subsequently transformed into a novel family of attractive mesoporous agar materials that could be used as natural templates for the production of nanocrystals of metal oxides. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1555 / 1560
页数:6
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